Senior Options Software Engineer

**Role Summary** Options market making presents a unique challenge in combining scale with business complexity. With over a million of listed options at the heart of billions of messages, we handle internet\-scale datasets while being constrained on hardware due to latency requirements necessitating exchange co\-location. This forces us to both push the machines to their max as well as innovate in the space of algorithms and business. In our mission to be the most successful investment team in the world, we hire the brightest minds in technology, research, and finance, and empower them to collaborate. Treating the problems as “data\-in, data\-out” technical challenges is not enough. To succeed, you need to be willing to master the options trading domain and translate this mastery into cutting edge software solutions, collapsing data cardinality where possible. **Location** New York **Objectives** * Build, maintain and support one of the world’s most powerful trading platforms while continuously improving performance, functionality and stability of the system * Design, develop, test, and deploy elegant software solutions across the firm * Partner with business leaders to define priorities and deliver custom solutions * Analyze complex business and technical problems * Make sound decisions proactively and in a self\-directed manner * Provide timely systems support for trading activities **Skills and Qualifications** * 5\+ years of working experience * Experience working in C\+\+ * Experience working with distributed systems * Sound understanding of multi\-threaded application design and development * Passion for technology and software development * Ambition to solve open\-ended problems using analytical methods * Ability to work independently and prioritize high\-impact projects * Strong communication and interpersonal skills applicable to a dynamic trading environment * Bachelor’s degree (or equivalent experience) in Computer Science or related field *Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel Securities, please share your details and we will contact you if there is a vacancy available.* **About Citadel Securities** Citadel Securities is the next\-generation capital markets firm and a leading global market maker. We provide institutional and retail investors with the liquidity they need to trade a broad array of equity and fixed income products in any market condition. The brightest minds in finance, science and technology use powerful, advanced analytics to solve the market’s most critical challenges, turning big ideas into real\-world outcomes.